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How do I make a placeholder for a 'select' box?
I'm using placeholders for text inputs which is working out just fine. But I'd like to use a placeholder for my selectboxes as well. Of course I can just use this code:
...
Proper use of the HsOpenSSL API to implement a TLS Server
I'm trying to figure out how to properly use the OpenSSL.Session API in a concurrent context
1 Answer
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Getting parts of a URL (Regex)
...arty, but there is a simple way to let the browser parse a url for you without a regex:
var a = document.createElement('a');
a.href = 'http://www.example.com:123/foo/bar.html?fox=trot#foo';
['href','protocol','host','hostname','port','pathname','search','hash'].forEach(function(k) {
console.lo...
SQL SELECT speed int vs varchar
...u use and the exact data types and strings you want to insert, it may turn out that your (say) 8-byte ints are longer than ascii varchars holding some textual IDs of avg length 3-4 chars. So, this answer - being imprecise and lacking any specific context or experimental results - doesn't really answ...
Using C# reflection to call a constructor
...too. Use GetConstructor if you want to have more control over things, find out the parameter names etc. Activator.CreateInstance is great if you just want to call the constructor though.
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imp...
Git Push Error: insufficient permission for adding an object to repository database
... shared repository (see core.sharedRepository in git help config). If the output of:
git config core.sharedRepository
is not group or true or 1 or some mask, try running:
git config core.sharedRepository group
and then re-run the recursive chmod and chgrp (see "Repair Permissions" above).
The...
Incrementing a date in JavaScript
...unt for transitions to and from daylight saving time; Clever Human pointed out that it would fail with November 7, 2010 in the Eastern timezone). Instead, Jigar's answer is the correct way to do this without a library:
var tomorrow = new Date();
tomorrow.setDate(tomorrow.getDate() + 1);
This work...
Futures vs. Promises
...e = promise.get_future();
auto consumer = std::thread([&]
{
std::cout << future.get();
});
producer.join();
consumer.join();
One (incomplete) way to implement std::async using std::promise could be:
template<typename F>
auto async(F&& func) -> std::future<declt...
PHP validation/regex for URL
...
Some things that jump out at me: use of alternation where character classes are called for (every alternative matches exactly one character); and the replacement shouldn't have needed the outer double-quotes (they were only needed because of the p...
How do lexical closures work?
...ironment they're defined in - in this case, the global environment (or the outer function's environment if the loop is placed inside another function). This is exactly the problem, though - in this environment, i is mutated, and the closures all refer to the same i.
Here is the best solution I can ...